Seki Kitchen Knife Sharpening Kitchen Knife This is a Yanagiba knife from the Noushu Masamune Japanese Kitchen Knife series. The Yanagiba knife is also called a sashimi knife and is perfect for sashimi. Blade: Stainless steel blade Handle: Polypropylene resin Blade length: Approximately 20cm The edge of the outer box will be cut off for shipping.